lol, but seriously, it really depends on what you need the water for and what the map it will be in looks like. Jedi academy has one or two nice ones that can be used in a few places, but usually the best ones are custom made. The easiest way to find one that would look good in your map would be to look around places at other maps and find some water that would go well with your map, then ask the person who made that shader if you can use it in your map.